My dog was having housebreaking problems - not that he didn't want to go outside to relieve himself, but that he didn't care if he was inside or not.
I know this thing is to have an inside-going dog go in the right place, but I used it outside his doggy door to get him to go outside in his dog-run. And it worked (mostly). At first, he rolled in it, but then started marking it, and 3 months later, I can say he obviously prefers it over going anywhere (including inside the house), but still, it's not an overpowering preference, and on occasion he still goes elsewhere. Nevertheless, it's changed the percentage from barely 50/50 to over 90% in our favor, and as a bonus, greatly reduced the number of death-threats he gets from me, which is always a good thing for everyone involved!